IPC Subgroup
G05D 23/26 the sensing element having a permeability varying with temperature
Introduced: September 1968
Last revised: January 2006
Full Title
Control of temperature > characterised by the use of electric means > with sensing elements having variation of electric or magnetic properties with change of temperature > the sensing element having a permeability varying with temperature
Classification Context
- Section:
- PHYSICS
- Class:
- CONTROLLING; REGULATING
- Subclass:
- SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES